Segment Information (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) group	Jun. 30, 2019 USD ($)
Segment Reporting Information [Line Items]
Net Sales	$ 949.2	$ 1,196.4	$ 2,039.5	$ 2,283.7
Operating Income	$ 131.5	$ 166.9	$ 250.3	$ 287.8
Operating Income as a % of Net Sales	13.90%	14.00%	12.30%	12.60%
Electrical
Segment Reporting Information [Line Items]
Number of business groups (in groups) | group			3
Net Sales	$ 507.1	$ 688.2	$ 1,113.2	$ 1,318.4
Operating Income	$ 57.1	$ 88.0	$ 115.1	$ 156.6
Operating Income as a % of Net Sales	11.30%	12.80%	10.30%	11.90%
Utility Solutions
Segment Reporting Information [Line Items]
Net Sales	$ 442.1	$ 508.2	$ 926.3	$ 965.3
Operating Income	$ 74.4	$ 78.9	$ 135.2	$ 131.2
Operating Income as a % of Net Sales	16.80%	15.50%	14.60%	13.60%